[x] Put out years in year only format (i.e. YYY)
 Put out all dates in a readable format (i.e. May 2010) in the date field to address the polluted data issue ASAP.
 Possibly translate them on our end as well.
This is a possible way forward for standardising dates which would occur over a longer time scale:
 Write up a standard format for publishers' dates. Possible format: https://www.loc.gov/standards/datetime/
 Put the new standard in a new field called publisherDate in citoid for transitioning purposes.
 See if any wikis are willing to use publisherDate. Each wiki would be able to decide if they want to accept the new format in their 'date' field, or if they prefer to have a separate field for it like 'publisher-date' or 'citoid-date'.
 Assess if the standard publisherDate is now suitable for the date field and potentially replace it. If not, remove it. This bit is sticky if there is only partial conversion.
Note: Discussion is also happening on ENWP here: https://en.wikipedia.org/wiki/Help_talk:Citation_Style_1#ISBNs_in_mw:Citoid